How can I use the Composition API in Vue.js with TypeScript?

How can I use the Composition API in Vue.js with TypeScript?

To use the Composition API in Vue.js with TypeScript, you need to set up your project with TypeScript support. You can then create a component using the setup function, where you can define reactive state and computed properties.

Can you show me a simple example?

Sure! Here's a basic example:

import { defineComponent, ref } from 'vue';

export default defineComponent({
  setup() {
    const count = ref(0);
    const increment = () => count.value++;

    return { count, increment };
  }
});

This defines a reactive count variable and an increment function.

What are the benefits of using the Composition API?

The Composition API offers better code organization, improved type inference, and easier reuse of logic across components. It also helps in managing complex components more effectively.

Are there any limitations I should be aware of?

One limitation is that the Composition API can be less intuitive for beginners who are used to the Options API. Additionally, it may require more boilerplate code for simple components.